#app{
    background: rgb(247,246,244);
    height: 843px;
}
#bAp{
    padding: 10px 0;
    margin: 0 230px;
}
.titleContent{
    margin: 0 16px;
}
.blue{
    color: rgb(25,147,254);
}
#tri{
    position: absolute;
    color: rgb(25,147,254);
    top: 18px;
    right: 472px;
    transition: right 0.2s ease-in-out;
}
#title{
    position: relative;
    padding: 0 430px;
    font-weight: 600;
}
#headBar{
    padding: 5px 113px;
    margin: 11px 0;
    border: solid 1px rgb(25,147,254) ;
}
#headBarList{
    display: flex;
}
#headBarList li{
    margin: 0 15px;
}
#headBarList li:hover{
    color: rgb(240,159,120);
}
#displayImgList{
    display: flex;
    flex-wrap: wrap;
}
#displayImgList li{
    padding-bottom: 20px;
}
.mid{
    padding: 0 109px;
    margin: 0 0;
}
#introduction{
    position: absolute;
    top: 84px;
    left: 512px;
    width: 736px;
    height: 186px;
    padding: 20px;
    background: rgb(255,255,255);
    display: none;
    opacity: 0;
    transition-property: top,left,opacity;
    transition-duration: 0.6s,0.6s,0.5s;
    transition-timing-function: ease-in-out;
}
#introduction h3{
    text-align: center;
    color:rgb(159,68,13);
}
#introduction p{
    text-indent: 40px;
    line-height: 27px;
    font-size: 14px;
}
#close{
    position: absolute;
    top: 5px;
    right: 5px;
    color: black;
    font-size: 20px;
    cursor: pointer;
}

